Originally written by Symantec and sold as Symantec Antivrus for Macintosh, it became part of the "Norton" branded products sold by Symantec after they acquired Peter Norton Computing. Norton Anti-Virus became a popular product on DOS, Windows, and Macintosh (SAM was renamed to NAV in 1998) and battled the then-new threat of malicious software. In 2015, Symantec unified their security product lineup under the single "Norton Security" product. It was also bundled with Norton SystemWorks.

Norton Backup, from Symantec, is a fast and easy to use backup tool for MS-DOS. The original 1.0 suffered from reliability problems, but these were fixed in 1.1. It does not include a backup scheduler. It competed against backup utilities such as PC Tools Deluxe PC Backup, Taketwo Manager, Gazelle Systems Back-It, Backup Pro, FastBack Plus, and Keep Track Plus.

Norton Commander is a MS-DOS based file shell that was widely popular due to it's two column design. You could easily copy and move files between one folder or another, execute DOS commands and more. It competed against many other file managers including Gazelle Q-DOS and Xtree

Norton Desktop is a powerful desktop shell and file manager bundled with many additional tools. There are versions for both DOS and Microsoft Windows.

The Norton Editor is a text editor targeted at programmers and power users. It features the ability to edit files of any size, supports very long lines, automatic indentation, and compressed display. It supports executing DOS commands from inside the program, and is very configurable.

Norton Textra Writer is an easy to use word processor for IBM PCs and compatibles running DOS. It was based on Ann Arbor Software' Textra, a small and fast word processor highly optimized for speed and rapid data entry, and published by the W W Norton & Co Inc publishing company (no relation to Peter Norton Computing or Symanetc).

The Norton Utilities is a suite of disk and system utilities designed to enhance system performance and stability. It started off as a set of disk utilities written by Peter Norton, and later was sold by Symantec. It competed against Central Point PC Tools and the Mace Utilities. In 2003, Norton Utilities was merged with Norton SystemWorks, but later split back out.

First released in 1982 and based on XyWrite, Nota Bene is a word processor specifically tailored to academic use. It is a very complex, unfriendly, program, but it is packed full of features. Features include footnotes, endnotes, redlining, styles, outlining, tables, indexes, bibliographies, a text retrieval system, foreign language support, spell checker, thesaurus, and a built in programming language. The Ibid component was an option that acted as sort of a database of bibliographic references.

First released in 1984, Nutshell was one of the first easy-to-use general purpose databases. It was created by Nashoba Systems and initially distributed by Leading Edge. layout design. It also supports calculated fields and sorting. version through Forethought Inc. as FileMaker. Later, Nashoba was acquired by Claris, where the product eventually became FileMaker Pro. found here: FileMaker History

OfficeWriter, from Office Solutions, Inc and later Software Publishing Corporation, is a word processor that mimics the Wang word processor system. It was targeted at corporations and competed against Multimate, another Wang word processor workalike.

Omnis, from the European based Blyth Software, is an easy to use multiuser relational database for Windows, MacOS, and OS/2. It was the first database ported to Microsoft Windows, which ran on Windows 1.0x.

Open Access III is a DOS based integrated office suite that includes a database, word processor, spreadsheet, statistical analysis, graphics, telecommunications and a C style custom application programming language.

Open Systems Accounting Software is a modular accounting package targeted at large businesses. It featured a high level of flexibility, as the company offered source code access for customization. It was available for DOS, XENIX, and Unix systems.

Oracle Server is an enterprise grade relational database used in many corporations. It was mainly targeted at high end server operating systems, such as IBM AIX, Sun Solaris, HP UX, Digital VMS, Linux, and Microsoft Windows NT. Oracle makes current versions of their software avaialble for download, but older versions usually disappear.

Orthodontic Computer Software Patient Information Management System is a custom business program specifically designed to aid in the management of orthodontic practices.

Outside In, from Systems Compatibility Corp, is a TSR file viewer that can copy and paste blocks of text from documents in to DOS applications.

Released in 1984 by Business & Professional Software, Inc, Overhead Express is a very early presentation program for the IBM PC that features high quality type, and an on screen print preview. It is geared towards overhead presentations, but can also be used for flyers, newsletters, report cover, labels, and more.

Packard Bell Navigator is an alternate user interface that replaces the Windows 3.1 Program Manager shell. It presents the content of your computer as a series of rooms.

Logetech's PaintShow Plus is a DOS based bit-mapped drawing program bundled with Logitech mice. Like ZSoft PC Paintbrush, Microsoft PC Paintbrush, and Mouse Systems PC Paint, PaintShow Plus clones the MacPaint user interface.

Palindrome Network Archivist is an enterprise server program to back up Novell NetWare servers onto tape drives.

MoneyPlans consists of a series of financial calculations intended to assist you in planning your personal financial situation. This includes calculations for Life Insurance, Disability Insurance, Education, Retirement, Cash Vs Loan, Leas Vs. Loan, Adjustable Rate Loan, Loan Comparison, CD Comparison, Bond Volatility, and Discount Feasibility.

Partition Commander is a Wizard based partition and disk utilization tool. It supports FAT, FAT32, NTFS, HPFS, and some Unix file systems.
It runs in real-mode DOS and installs from only two floppy disks. It competed directly against Partition Magic. Memory Commander, a 386 Expanded/Extended Memory Manager.

A tool from PowerQuest, and later Symantec, that enables manipulation of partitions through its own bootable media. PartitionMagic can shrink, grow, or move partitions without the need to backup and restore files in that partition. It supported a variety of file systems, and the core DOS-based parition tool fit on a bootable 1.44mb floppy disk. It was extremely popular, and made installing or removing multiple OSes much easier.

PATHWORKS is a network client suite that enables PCs to communicate with VMS and Ultrix systems from Digital Equipment Corporation.

PC Animate Plus, from Presidio Software, Inc, is a two dimensional paint and animation package. It can use 256 colors and Sound Blaster sound. It supports SVGA resolutions and 32k colors on select video cards. Supports frame rotation and scaling, pixel painting and pallet effects, cell animations, and can import Autodesk FLI animations.